20128988 (number)

20128988 is an even 8-digits composite number following 20128987 and preceding 20128989. In scientific notation, it is written as 2.0128988 × 10^7. The sum of its digits is 38. It has a total of 5 prime factors and 24 positive divisors. There are 8935920 positive integers (up to 20128988) that are relatively prime to 20128988.

Interesting facts

Basic properties

Name

Name twenty million one hundred twenty-eight thousand nine hundred eighty-eight

Notation

Scientific notation 2.0128988 × 10^7
Engineering notation 2.0128988 × 10^6

Prime Factorization of 20128988

Prime Factorization 2 × 2 × 11 × 43 × 10639

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 10064494
Product of the distinct prime numbers

The prime factorization of 20128988 is 2 × 2 × 11 × 43 × 10639. Since it has a total of 5 prime factors.

Most popular turbo-numbers

6, 10, 23, 12, 562, 292, 6231, 2612, 19431, 90331, 232288, 599790, 8402613, 3261661, 58889123, 16309896, 269260200, 647080528, 7244102620, 8811083639

Basic calculations (n = 20128988)

Multiplication

n×y
n×2 40257976
n×3 60386964
n×4 80515952
n×5 100644940

Division

n÷y
n÷2 10064494
n÷3 6709662.6666667
n÷3 5032247
n÷5 4025797.6

Exponentiation

ny
n2 405176157904144
n3 8.1557860203386E+21
n4 1.6416771893396E+29
n5 3.3045300444091E+36

Nth Root

y√n
2√n 4486.5340743162
3√n 272.02405712825
4√n 66.981595041595
5√n 28.891120669096

Divisors of 20128988

1, 2, 4, 11, 22, 43, 44, 86, 172, 473, 946, 1892, 10639, 21278, 42556, 117029, 234058, 457477, 468116, 914954, 1829908, 5032247, 10064494, 20128988

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20128987
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 1
Returns the nth root of the product of n divisors
H Harmonic Mean 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20128988 can be divided by 24 positive divisors. The sum of these divisors (counting 20128988) is 1, the average is 0.041666666666667.

Base conversion 20128988

Base System Value
2 Binary 1001100110010010011011100
3 Ternary 1101212122210002
4 Quaternary 1030302103130
5 Quinary 20123111423
6 Senary 1555233432
8 Octal 114622334
10 Decimal 20128988
12 Duodecimal 68a8878
16 Hexadecimal 13324dc
20 Vigesimal 65g298
36 Base36 bzfmk

Cryptographic Hash Functions

md5 be440535190751bd6c9a957c8a7ba99d
sha1 9c84691bceb2410ff016762bb6ae60d1501b0d32
sha256 02ad3505621af2a900db6e001344577072cec2ad402da64cd02493ba6e86645e
sha512 99cae06cd7235891e515555191e4bc6af4e83a84a3f33ba56096fe6d440631efe494466c83d450e19e5a37c87aa916b8e7f2384460045f1b942477b5d2838e20
ripemd-160 df5507a9c85f27e65d572f591fcc1cbafdc7203e

20128988 as geometric shapes

Circle

Radius = n
Diameter 40257976
Circumference 126474161.64999
Area 1.2728984410814E+15

Sphere

Radius = n
Volume 3.4162876594328E+22
Surface area 5.0915937643256E+15
Circumference 126474161.64999

Square

Length = n
Perimeter 80515952
Area 405176157904144
Diagonal 28466687.826445

Cube

Length = n
Surface area 2431056947424864
Volume 8.1557860203386E+21
Space diagonal 34864429.920944

Equilateral Triangle

Length = n
Perimeter 60386964
Area 1.7544642287638E+14
Altitude 17432214.960472

Triangular Pyramid

Length = n
Surface area 1.7544642287638E+14
Volume 9.6116860014798E+20
Height 9488895.9421484